baber/WOPTO huggingface dataset:
Patent GB-703644-A (GB)
Title: Automatic safety and pressure breathing means
IPC: B64D13/02
Filed: 1951-05-02
Abstract: 703,644. Fluid-actuated valves. BENDIX AVIATION CORPORATION. May 2, 1951 [May 12, 1950], No. 10337/51. Class 135. [Also in Group VI] An oxygen-demand regulator comprises a casing 12 having a connection 28 for a breathing mask, a respiratory-responsive diaphragm 38, a pressure chamber 26, a demand valve 16 forming one wall of said chamber, a control mechanism connected to the demand valve 16 and the diaphragm 38 so as to open and close the demand valve in response to respirator pressure applied to the chamber 26, said control mechanism including two pivoted levers 102, 104, which transmit movements of two aneroids 72, 74, to the diaphragm ; one aneroid 72 is set to begin distending at a predetermined altitude so as to increase the pressure in the chamber 26 to a desired value and the other aneroid 74 is set to begin distending at a higher altitude and so to further increase the pressure in the chamber Specifications 690,382 and 703,646, [Group VI], are referred to.
Patent GB-823631-A (GB)
Title: Current limiting device for safeguarding circuit elements from excessive starting currents
IPC: H01H1/50
Filed: 1958-04-01
Abstract: 823,631. Thermal switches. WUERTH, R. C. April 1, 1958, No. 10369/58. Class 38 (5). [Also in Group XL (c)] A switch for initially limiting the current to the filaments of electron tubes or electric light bulbs, comprises a resistance 10 arranged to be connected in series with the filaments, and supporting a bi-metal strip 14 connected thereto at 12. The bi-metal carries a contact 17 which, as the resistance heats up and deflects the bimetal, engages a fixed contact 18 connected to the other end of the resistance at 13, thereby short-circuiting the resistance. The resulting current through the bi-metal is sufficient to keep it deflected. The resistance is preferably embedded in a refractory body 11, as shown, and the bi-metal may be replaced by a bellows.
Patent GB-668691-A (GB)
Title: Improvements in electrolytic cell
IPC: C25C7/02
Filed: 1950-04-27
Abstract: 668,691. Fused-electrolyte apparatus. DU PONT DE NEMOURS & CO., E. I. April 27, 1950 [April 27, 1949], No. 10421/50. Class 41. A fused salt electrolysis cell having refractorylined steel side walls and a steel bottom, is characterized by a graphite anode wholly enclosed within the cell and in electrical contact with the bottom which is insulated from the side walls and from ground. As shown, the cell is cylindrical and has a centrally-located graphite anode 1 surrounded by an annular steel cathode 2 which is supported by arms 3. The anode is supported by a steel base-plate 4 formed with a socket 5 and provided with a flange 10. The socket 5 has a boss 6 with a tapered pin 7 on which the anode fits, a space being provided between the anode and the socket which is filled with metal 32. The metal is molten during normal cell operation. A vent channel 17 permits contraction and expansion of the molten metal with changes of temperature. Refractory insulation, for example, asbestos, fills the space between the top of the molten metal and an annular refractory plate 8. The side walls of the cell are formed by a cylindrical steel shell 11 provided with openings for the arms 3. The shell is supported on insulating refractory bricks 33 located within the flange 10, and cement 12 is placed between the shell 11 and the anode and between the shell and the flange 10. The shell is lined with refractory brick 13. It is in two halves fastened together by flanges 18 and bolts 19 after the cathode has been set in place by cement 20. Electric busbar 22 is connected by bolts 23 to the base of the anode socket 5. Bus-bars 24 are fastened to the arms 3 by bolts 30. Specifications 238,956. [Class 41], and 519,814 are referred to.
Patent GB-636891-A (GB)
Title: Preparation of photographic diazo prints utilizing resorcinol carbonamides as coupling components
IPC: G03C1/58
Filed: 1947-04-18
Abstract: p - Morpholinomethyl - a  - resorcylamide is prepared by heating together morpholine, formaldehyde, and a -resorcylamide.
Patent GB-513427-A (GB)
Title: Improvements in or relating to liquid level indicators
IPC: G01F23/24
Filed: 1938-04-05
Abstract: 513,427. Electric signalling systems. COSTA, H. DA., and PLESSEY CO., Ltd. April 5, 1938, No. 10455. [Class 40 (i)] In a liquid level indicator utilizing the difference in resistance between two wires one of which is variably immersed dependent on the level and the other heat insulated from the liquid, the two wires 14, 13 are carried in separate tubes 12, 11 mounted side-by-side on a common base member 18 secured to the container. The resistance wires have a pronounced temperature coefficient and form two arms of a Wheatstone bridge indicating circuit of which the other two arms and the indicator may be situated at a remote point. Tube 11 is sealed against the liquid but tube 12 has upper and lower apertures 22, 21 which are gauze covered to provide a flame trap and prevent surging of the liquid. The wires are connected at their lower ends to the tubes and thence together by the container, whereas their upper ends are connected to insulated terminals 16, 17.
Patent GB-130944-A (GB)
Title: Improvements in Variable Speed and Reversing Gearing.
Inventor: WOLLESEN JACOB FREDERICK
IPC: F16H3/08
Filed: 1919-04-28
Abstract: 130,944. Wollesen, J. F. April 28, 1919. Variable-speed and reversinggearingcomprises a driven wheel 18, Fig. 2, having rings of bevel teeth 23, 21 meshing respectively with a pinion 24 on a shaft'17 and with a. pinion 26 loose on that shaft. A steeve 19 loose on the shaft 17 has splined upon it a clutch member 28 adapted to engage a like member 27 ou the pinion 26. A driving-shaft 1 is adapted to be connected alternatively to the shaft 17 and to the sleeve 19 by a double-acting friction clutch comprising shoes 12 able to engage drums 14, 16 on the shaft and sleeves respectively. The shoes 12 are supported on eccentrics 9 having arms 8 connected by rods 7 to pivoted cam levers 6. A cam sleeve 4 causes the shoes 12 to engage either drum. A high speed is effected through drum 14, shaft 17 and pinion 24. A low speed is effected through drum 16, sleeve 19, clutch 28, and pinion 26. Reversed driving is effected through a pinion 32, Fig. 1, on the other side of the wheel 18. A gear 29 on the clutch member 28 is adapted to effect the reversed drive by being moved into mesh with one of a. pair of gears 33 making connexion with the pinion 32. A lever 36, Fig. 3, which operates the cam sleeve 4, passes up through a. slot 41 in a lever 40 which operates the clutch 28. The lever 36 is guided in a Y-shaped slotted gate 38 so that movements of it alone produce the proper combinations. A modification combined with reducing-gearing for heavy motor-vehicles is described.
Patent GB-492456-A (GB)
Title: A new process of producing woven fabrics
IPC: D06Q1/00
Filed: 1937-04-13
Abstract: Threads of natural silk or the natural silk part of composite threads are shrunk by the action of a heated solution of a neutral salt, e.g. calcium chloride or nitrate.  The salt may be applied locally to produce cr<\>zepe effects.
Patent GB-1377528-A (GB)
Title: Parlour game
IPC: A63F1/04
Filed: 1972-03-07
Abstract: 1377528 Board/card game W SCHOHN 7 March 1972 10580/72 Heading A6H Apparatus for playing a board/card game comprises a board 11 divided in rank and file manner into a number of areas 14, each area having a unique designation being a combination of its rank designation and its file designatation, and a pack of cards 16 for each player, each pack having regular cards equal in number to the number of areas on the board 11, and each card having marked thereon the designation of one of the areas. In play, the cards are alternately placed upon the corresponding spaces on the board by the players, each player endeavouring to form a horizontal, diagonal or vertical row of 5 cards or to cover the four corner spaces of the board. The packs also include. wild cards which may be placed on any unoccupied area of the board and special cards which may be placed on any area of the board to spoil an opponent's row of cards formation. Counters 17 may be provided for staking.
Patent GB-305407-A (GB)
Title: Improvements in or relating to pulverised fuel burners
IPC: F23D1/00
Filed: 1928-04-10
Abstract: 305,407. Yarrow, H. E. April 10, 1928. Pulverulent-fuel burners.-In a pulverized fuel burner of the kind in which a conical obturator E partially closes the end of the central tube C through which the fuel-air mixture is supplied, the main air supply entering through ports in a sleeve H surrounding the discharge end of the tube, the discharge orifice F is formed so as to direct the mixture in an annular sheet across the path of the air stream. In the construction shown this orifice, formed between the cone E and the end of the tube C, directs the fuel mixture in a rearward direction into the air stream. Both the tube C and cone E are longitudinally adjustable. The main air supply passes through ports G in a fixed sleeve H, and thence through ports I in a longitudinally adjustable sleeve J carrying vanes which give the air a whirling motion in its passage to the discharge aperture N. The longitudinal relationship of the aperture N and the mixture discharge aperture F may be varied by adjustment of the sleeve J. The mixture may be given a whirling motion by means of vanes in the tube C.
Patent GB-974355-A (GB)
Title: Improvements in and relating to header type tubular heat exchangers
Inventor: PETERS WALTER ERNEST
IPC: F22D1/32
Filed: 1960-03-25
Abstract: 974,355. Tube-type heat exchangers. ENGLISH ELECTRIC CO. Ltd. March 24, 1961 [March 25, 1960; Sept. 8, 1960], Nos. 10653/60 and 30951/60. Heading F4S. In a header-type tubular heat exchanger including a vessel 1 having an inlet 3 for steam and an outlet 4 for condensate and a plurality of groups of heat exchange tubes 12 for feed water for a steam generator, each group of heat exchange tubes 12 has a separate inlet header 10 and a separate parallel outlet header 11. Each inlet header 10 is connected by a pipe 9 to a feed water inlet duct 7 and each outlet header 11 is connected by a pipe 9 to a feed water outlet duct 8. Each group comprises a row of tubes 12 extending up and down the vessel 1 twice between the corresponding inlet and outlet headers. The portions of the tubes 12 near the outlet headers 11 are encased in a mantle 13 closed at the bottom and into which the steam inlet 3 is connected. Each row of tubes 12 carries a number of baffle strips 40, the strips of one row fitting closely to the strips of the adjacent row. The baffle strips 40 combine with further strips and segmental plates to form transverse circular baffles, but some of the baffle strips 40 are omitted in each baffle to provide a zig-zag passage for the steam as indicated by the arrows. The further strips, vertical bars, a vertical plate 15 and ring segments form a frame supported from the inlet and outlet feed water duets 7, 8. The ring segments are bolted together and serve to trap the ends of the baffle strips 40. The tubes 12 can be removed for inspection by first withdrawing all the tubes, the headers and the frame from the vessel 1. Any group of tubes can then be removed sideways from the frame by removing the ring segments and cutting the connection pipes 9. In a modification, Fig. 5 (not shown), the inlet duct is connected by four fall pipes to inlet headers at the bottom of the casing and groups of heat exchange tubes lead upwardly, then horizontally, then upwardly to the top of the easing, then with two U-bends downwards and upwards to outlet headers at the top of the casing. The condensate outlet at the bottom of the casing is connected by a U pipe to a drain outlet box located above the level of the horizontal portions of the heat exchange tubes. In another modification, Figs. 6, 7 (not shown) the inlet duct is again connected by fall pipes to inlet headers at the bottom of the casing and short straight tubes lead therefrom to other headers extending across the whole width of the casing. Short branch pipes connect these headers to further parallel headers extending over one-third of the width of the casing. Long straight tubes then lead upwardly to headers at the top of the casing and then downwardly to further headers near the bottom of the casing and then upwardly to further headers at the top of the casing.
Patent GB-637062-A (GB)
Title: Improvements in and relating to metal caps or covers
IPC: F01P11/02
Filed: 1948-04-20
Abstract: 637,062. Caps for fuel tanks. WESTWOOD RIM & PATENTS, Ltd., WESTWOOD, S. C., and WESTWOOD, N. F. April 20, 1948, No. 10872. [Class 125(iii)] [Also in Group XXII] A metal cap or cover, to be applied to a fuel tank, comprises a pair of circular dished elements nested one within the other, the edge of the inner dished element c being serrated and the edge of the outer element a being forced on to said serrations e to prevent relative rotation of the elements. The inner dished element is formed with an outwardly extending rim which after serration is displaced into a vertical position. The edge f of the element a is forced against serrations e by a rolling or spinning operation. The inner element may have fittings, such as a hinge, a securing clip, a sealing member or the like, secured to it. The side wall of the element a may be provided with a knurled portion b.
Patent GB-985290-A (GB)
Title: Improved process for the preparation of melamine
Filed: 1963-03-19
Abstract: Melamine is prepared by reacting urea with a salt or amide of sulphamic acid without the addition of ammonia, the molar ratio of the two reactants being substantially 1:1 (i.e. \sB 10%) when these reactants are urea and a salt of sulphamic acid, and substantially 2:1 (i.e. \sB 25%) when the reactants are urea and sulphamide respectively, the reaction temperature being maintained uniform throughout the reaction zone, and being from 280 DEG  to 340 DEG  C., and the pressure being at least 50 p.s.i.g. (4.5 atmospheres abs.). The sulphamate is preferably an ammonium or alkali metal sulphamate, but small amounts of sulphamic acid may also be present, as well as catalytic amounts of boron, phosphorus, arsenic or antimony compounds. Specification 913,522 is referred to.
Patent GB-642986-A (GB)
Title: Improvements relating to brake and inching control mechanism for mechanical presses
IPC: F16D67/04
Filed: 1948-04-21
Abstract: 642,986. Gearing for stopping machinery. WELDED PRODUCTS,. Ltd. April 21, 1948, No. 10981. Convention'date, July 9, 1947. [Class 80(ii)] A brake and inching control for the shaft 11 of a mechanical press driven by a flywheel 10 through a main disc-clutch 13, comprises an auxiliary clutch 27, the outer member of which has worm-wheel teeth engaging a worm 23 on the shaft of an inching electromotor 25, normally held stationary by a solenoid-brake, so that when fluid-pressure is exhausted from main-clutch engaging cylinders 17, the release springs 32 of the main-clutch 13 engage the auxiliary clutch 27 to brake the press-shaft 11, while in this same condition, release of the solenoid-brake and energization of the motor 25, inches the pressshaft through the auxiliary clutch.
Patent GB-212772-A (GB)
Title: Improvements in or relating to a method and means for securing wooden handles and the like
IPC: B25G3/28
Filed: 1923-04-23
Abstract: 212,772. Plumb, F. R. April 23, 1923. Wedges; wood-screws, for expanding hammer shafts &c. in their sockets. (1) Ordinary wedges are coated with a cement or varnish, for example a solution of Gibsonite, or of shellac or other gum, or resin, which hardens, but will soften when heated, so that when the wedge is driven in the coating softens and acts as a lubricant, and also serves to hold the wedge firmly in place. (2) Two wedges 10, 11 are used at an angle to each other as shown in Fig. 1 and (3) a headless taper wood-screw 13, Fig. 5, is screwed into the handle longitudinally through the wedge.
Patent GB-812096-A (GB)
Title: Improvements relating to electrical switch-gear
IPC: H02B13/00
Filed: 1957-04-04
Abstract: 812,096. Switchgear structures. CALOREMAG ELEKTRIZITATS-A.G. April 4, 1957 [April 6, 1956; June 27, 1956], No. 11020/57. Class 38 (5). High voltage switehgear comprises a plurality of individual parts A, B, C, coupled together by plug-in connections D and formed substantially from synthetic casting resin, at least one of the parts being adapted to be fixed in a desired position and at least one other part being supported from the fixed part or parts solely by means of the plug-in connections. In Fig. 1, the switchgear comprises a fixed bus-bar and fuse chamber A, a switch B and a transformer chamber C interconnected by the connections D which support the parts B and C. The bus-bars 3 and connections 19, 20 to the fuse-clips 4, 5 are embedded in the rear wall of the chamber A. The switch B comprises a two-part casing 8, 10, a fixed contact 9 and a moving contact 27 operated by compressed air acting on a piston 26. The chamber C may enclose a current transformer 12 separately encased in casting resin or embedded in the chamber casting. In Figs. 4 and 5 (not shown), both chambers A and C are fixed and in Fig. 5 the fuse or fuses may be housed in the switch casing. The chambers and switch casing may be formed from an epoxy resin, a polyester resin or a resin based on silicones which may include inorganic fillers or colouring matter. An earthed metallic outer coating may be provided.
Patent GB-375910-A (GB)
Title: Improvements in thermostatic mixing valves
IPC: G05D23/13
Filed: 1931-04-14
Abstract: 375,910. Mixing valves. HALL ELECTRIC HEATING CO., Inc., 1429, Walnut Street, Philadelphia, U.S.A. April 14, 1931, No. 11028. Convention date, April 15, 1930. [Class 135.] A thermostatic mixing valve comprises hot and cold water inlets 11, 24, fitted with non- return valves 15, 35, a passage 18 fitted with a valve 19, and a thermostatic coil 22 adapted to operate the valve 19. The coil and valve 19 are mounted in a cylindrical fitting 16 having arms 21, 21<1>. The passage 18 leads to a nozzle 18<1>, in which is a hole 15<1> opening into the hot water inlet. A screw union piece 23 holds the cylinder 16 in place by means of a flange 40. When a valve fitting connected to the outlet 12 is operated, hot water enters the chamber 13, the valve 19 being normally closed. As the coil 22 becomes hot it operates the valve 19 by means of an arm on the spindle 20 and cold water is admitted at a variable rate through the valve 35 until a predetermined working temperature is reached. The hot and cold water mix in the chamber 13 and pass out by the screwed outlet 12.
Patent GB-1136848-A (GB)
Title: Improvements in or relating to an atomizing piston pump
IPC: B05B11/00
Filed: 1967-03-09
Abstract: 1,136,848. Reciprocating pumps. R. ALBERT [trading as RUDOLF ALBERT] March 9, 1967 [March 12, 1966], No.11028/67. Heading F1A. An atomizer pump for mounting on a container e.g. for scent, comprises a large piston 2 in a cylinder 1 and a small piston 4 in a cylinder 3, a valve 10 in piston 2 being actuated by piston 4 through a lost motion pin and slot coupling 7, 8 and a rod 6. Piston 4 has a valve 12 or may be formed as a cup washer, Fig. 2 (not shown). The pistons are moved downwardly by normal pressure against a spring 13. Liquid is discharged through a rifled nozzle 18. The discharge pressure of the liquid may be adjusted by adjusting the degree of lost motion of the coupling.
Patent GB-1185102-A (GB)
Title: Process for the production of Bisphenols
IPC: B01J31/10
Filed: 1967-03-09
Abstract: 1,185,102. Bisphenols. UNION CARBIDE CORP. 9 March, 1967 [9 March, 1966], No. 11083/67. Heading C2C. Bisphenols are prepared by reacting ketones with phenols in presence of 0À01-5 wt. per cent phenol-soluble mercaptan, and a solid insoluble ion-exchange resin containing pendant sulphonic acid groups. Examples describe the production of 2,2-bis (4-hydroxyphenyl)propane from acetone and phenol.
Patent GB-927124-A (GB)
Title: Boring or milling machine
Inventor: MATTHEIS WILLI
IPC: B23Q1/54
Filed: 1962-03-23
Abstract: 927,124. Machine-tool details. HUTTENWERK SALZGITTER A.G. March 23, 1962, No. 11122/62. Class 83 (3). A boring or milling machine comprises vertically fixed tool-heads 14, 15, 17, horizontally slidable on guides 12, 13, 16, and a work-table 24, 25, vertically adjustable on guides 20 sunk in a well 18 in the machine foundations. A spindle 26 is rotated by a motor-driven worm and wheel 30, 31, to vertically displace table 24, 25, and part 25 is adjustably mounted in part 24, by a ball and socket 33, 34. Part 25 is rotatably adjusted by a motor driven worm-drive 35, and is pivoted by four struts 36, 37 vertically movable by a motor 40 which drives a worm drive 42 through reduction gearing 41, a shaft 43, bevel gears 44, and shafts 38. Part 25 is clamped in its adjusted position by four hydraulic rams 45.
Patent GB-1464659-A (GB)
Title: Apparatus for sensing rotational speed
IPC: H02K11/00
Filed: 1974-03-13
Abstract: 1464659 Sensing rotary speed ROBERT BOSCH GmbH 13 March 1974 [14 March 1973] 11126/74 Heading H2A [Also in Division F2] Apparatus for sensing rotary speed comprises a drive shaft and a speed sensing device mounted on a secondary part of an oscillation damper having a speed-dependent damping characteristic, the damper including a rotary motion transmission spring between the drive shaft and the secondary part, two centrifugal masses, and at least one spring operatively associated with the centrifugal masses fore stablishing a speed-dependent frictional contact between the drive shaft and the secondary part. In the arrangement shown, an annular member 2 with teeth 7 is mounted on a drive shaft 1 by a bearing 3, and is coupled to the shaft by a motion transmission torsion spring 12, movement of the teeth 7 relative to a toothed yoke 8 and a coil 9 producing an output at two terminals 10. The member 2 supports two centrifugal bodies 24 on pivot pins 23, and two springs 27 bias the bodies 24 towards the shaft 1. At low rotataional speeds the frictional contact between the bodies 24 and the shaft 1 provides a relatively large damping on the member 2, the force being transmitted from the bodies 24 via the pins 23, but as the speed increases the damping decreases as the contact pressure between the bodies 24 and the shaft 1 decreases. At a certain speed the bodies 24 lose contact with the shaft 1 and frictional damping ceases. In the arrangement of Figs. 3, 4 (not shown), a cup-shaped member (43) with teeth (7) is subjected to frictional damping only at speeds in excess of a minimum speed, i.e. the speed at which two pivoted centrifugal bodies (24<SP>1</SP>) swing outwards to contact a member (36) fixed to a drive shaft (1). In the arrangement of Fig. 6 (not shown), a member (2<SP>1</SP>) is damped at low speeds through contact with an axially biased body (80), but at high speeds a number of balls (69) become centrifugally displaced to cause the biased body (80) to lose contact with the member (2<SP>1</SP>), frictional damping then ceasing. The apparatus may in each case alternatively include a mechanical centrifugal governor, or a magnetic tape on the outside of a rotary member.